Question: Who is the child of Louis IX of France and when did the child die?
Paraphrase: Who is the toddler of Louis IX of France and when did the infant die?
SPARQL (Wikidata): SELECT ?value1 ?obj WHERE { wd:Q346 p:P40 ?s . ?s ps:P40 ?obj . ?s pq:P570 ?value1 . }